Solve the following system of equations and show all work. y = -x2 + 4
y = 2x + 1 (10 points)

(please include the factorization and all steps you used, thank you!)

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

What is the difference between regular convex and concave polygons

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?